This Fruit Crumble Muesli Bar is the perfect balance of wholesome ingredients and natural sweetness, making it a go-to snack for busy days or a treat in the kids’ lunchboxes. It’s a versatile recipe that’s easy to adapt with your favorite seasonal fruits, and the base doubles as both a crunchy foundation and a crumbly topping. Plus, it’s super easy to make and packed with nutrients from oats, seeds, and fruit.
I love to make this slice if I need to use up over ripe fruit. I’m not a fan of using dried fruit (like dates/sultanas etc) in baking as I find it gives me a big sugar rush (followed by brain fog and energy slump) and I’ve also noticed my kids desire for sugar increases if they eat dried fruit. So I prefer to use fresh fruit in my baking and this Fruit Crumble Muesli Bar is one of my families favourite whole food treats.
I tend to choose fruits that have seen better days to make this recipe – like over ripe plums, pears, strawberries, raspberries or blueberries. Or floury apples often end up in this bar (I love them combined with rhubarb or berries to make berry crumble bars).
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Fruit Crumble Muesli Bar
Ingredients
Base / crumble
- 125 g butter or coconut oil -cubed
- 170 g rice malt syrup, honey or maple syrup (½ cup)
- ½ tsp bicarbonate of soda
- 120 g mixed seeds (1 cup approx.) I used sunflower seeds and pepitas
- 120 g wholemeal spelt flour (1 cup)
- 200 g rolled oats (2 cups) or quinoa flakes (or a mixture)
- 50 g desiccated coconut (½ cup)
- 1 tsp ground cinnamon
Filling
- 1 cup/s your choice of seasonal fruit (fresh plum, apricot, nectarine, peach, berries, apple, pear, cherries) -finely diced or sliced
- 2 tbsp rice malt syrup, honey or maple syrup (optional)
- 1 tbsp butter
- 1 tbsp chia seeds
Instructions
- Pre-heat the oven to 180℃ / 350℉ (fan-forced).
- In a small pot melt the butter and sweetener, mixing to combine. Add the bicarb and stir well.
- I pulse the seeds in a food processor to break them up and make a finer slice (but you don’t have to). Mix the seeds, flour, oats (or quinoa), coconut and cinnamon in a bowl.
- Add the butter/ sweetener mix and stir to combine.
- Line a small tin (27cm x 18cm) with baking paper. Press ⅔ of the mixture into the base of the tin and press down firmly with wet hands and bake for 10 minutes. The remaining ⅓ will form the crumble top (so set aside until after the fruit is ready).
- Whilst this is baking, put all the filling ingredients into the small pot (that you used in the first stage, no need to wash). I’ve used cherries and plums in this photograph as they are in season right now
- Simmer until the fruit starts to soften, stirring occasionally.
- Once the base is cooked, top with the fruit mixture and with wet hands, place with the rest of the crumble over the fruit.
- Bake for approximately 20 minutes or until just golden brown.
- Allow to cool in the pan, refrigerate until firm and then cut into slices (cooling it allows for it to be sliced without crumbling).
Thermomix Method
- Melt the butter and sweetener 1 minute, temp 90, speed 3 or until melted and combined. Add the bicarb and mix 5 seconds speed 3. Set aside.
- Pulse the seeds, turbo button 3-4 times (check through the lid after each pulse to chop as required). Add the rest of the crumble ingredients and the butter/sweetener and mix 15 seconds, speed 3. You may need to scrape the sides to fully combine.
- The filling can also be cooked in the TMX, all of the ingredients into the bowl, temp 90, 100, reverse speed 1. The time depends upon the fruit (softer fruit needs less time), approx 3-5 minutes.
- Assemble as above.
Store
- Airtight in the fridge or freezer. You can pack in school lunch boxes from frozen. I also love this heated up with fresh cream – very indulgent!!
Slice gone 'green' (or flecked green)
- You may have noticed that your seed containing cakes, slices or cookies turn or fleck 'green'. I can explain...Sunflower seeds contain chlorogenic acid which reacts with the baking powder and bicarb when it's heated and turns various shades of green when cooled. To reduce the ‘shrek-look’ you can reduce the baking powder or bicarb (by about a third) or add 2 tsp lemon juice or vinegar to the wet ingredients. But remember - even if they do turn green, they are completely safe to eat.
























